I2C_INT_DATA
ki2c_writereg(sc, IER,I2C_INT_DATA|I2C_INT_ADDR|I2C_INT_STOP);
ki2c_writereg(sc, IER, I2C_INT_DATA | I2C_INT_ADDR| I2C_INT_STOP);
if (isr & I2C_INT_DATA) {